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Appendix B. Keyboard Key Code Values

Key codes are numeric values that correspond to physical keys on the keyboard but do not necessarily correspond to a particular character. For example, the A key on the keyboard produces the same key code when pressed, even though its character code might be 65 (uppercase A) or 97 (lowercase a), depending on whether the Shift key is down at the same time. Key codes are not influenced by modifier keys. Character values (See Appendix A) may be read from the onkeypress event, while the key values, including navigation and function keys, are available from onkeydown and onkeyup events. Table B-1 lists all keys on a typical U. S. English keyboard and their corresponding key codes.

Table B-1. U.S. English keyboard and corresponding keycodes

Key

Key Value

 

Key

Key Value

Alt

18

 

F5

116

Arrow Down

40

 

F6

117

Arrow Left

37

 

F7

118

Arrow Right

39

 

F8

119

Arrow Up

38

 

F9

120

Backspace

8

 

F10

121

Caps Lock

20

 

F11

122

Ctrl

17

 

F12

123

Delete

46

 

Home

36

End

35

 

Insert

45

Enter

13

 

Num Lock

144

Esc

27

 

(NumPad) -

109

F1

112

 

(NumPad) *

106

F2

113

 

(NumPad) .

110

F3

114

 

(NumPad) /

111

F4

115

 

(NumPad) +

107

(NumPad) 0

96

 

P

80

(NumPad) 1

97

 

Q

81

(NumPad) 2

98

 

R

82

(NumPad) 3

99

 

S

83

(NumPad) 4

100

 

T

84

(NumPad) 5

101

 

U

85

(NumPad) 6

102

 

V

86

(NumPad) 7

103

 

W

87

(NumPad) 8

104

 

X

88

(NumPad) 9

105

 

Y

89

Page Down

34

 

Z

90

Page Up

33

 

1

49

Pause

19

 

2

50

Print Scrn

44

 

3

51

Scroll Lock

145

 

4

52

Shift

16

 

5

53

Spacebar

32

 

6

54

Tab

9

 

7

55

A

65

 

8

56

B

66

 

9

57

C

67

 

0

48

D

68

 

`

222

E

69

 

-

189

F

70

 

,

188

G

71

 

.

190

H

72

 

/

191

I

73

 

;

186

J

74

 

[

219

K

75

 

\

220

L

76

 

]

221

M

77

 

`

192

N

78

 

=

187

O

79

     

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